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Twannberg Mass #TW611
The Twannberg meteorite is chemically a rare IIG iron and structurally a hexahedrite. Ongoing scientific research shows that the Twannberg meteorite fell 200,000 years ago (+/- 20,000 years). In the absence of a widmannstätten pattern, oxidation is rather moderate and shale is mostly present only on the surface of the pieces; some pieces even showed delicate flowlines and original fusion crust.